Publication: Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements
Дата
2021
Авторы
Martynenko, A. S.
Baird, C. D.
Booth, N.
Dohl, L. N. K.
Pikuz, S. A.
Skobelev, I. Yu.
Ryazantsev, S. N.
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Аннотация
© 2020 Author(s).X-ray absorption spectroscopy is a well-accepted diagnostic for experimental studies of warm dense matter. It requires a short-lived X-ray source of sufficiently high emissivity and without characteristic lines in the spectral range of interest. In the present work, we discuss how to choose an optimum material and thickness to get a bright source in the wavelength range 2 Å-6 Å (∼2 keV to 6 keV) by considering relatively low-Z elements. We demonstrate that the highest emissivity of solid aluminum and silicon foil targets irradiated with a 1-ps high-contrast sub-kJ laser pulse is achieved when the target thickness is close to 10 μm. An outer plastic layer can increase the emissivity even further.
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Цитирование
Optimization of a laser plasma-based x-ray source according to WDM absorption spectroscopy requirements / Martynenko, A.S. [et al.] // Matter and Radiation at Extremes. - 2021. - 6. - № 1. - 10.1063/5.0025646
URI
https://www.doi.org/10.1063/5.0025646
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https://openrepository.mephi.ru/handle/123456789/23591
https://www.scopus.com/record/display.uri?eid=2-s2.0-85099352608&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000601565800001
https://openrepository.mephi.ru/handle/123456789/23591